# ClipStackX vs K.ai

The clearest difference is ads: K.ai at none against ClipStackX's shown. ClipStackX's advantage is update cadence (every 3 days vs weekly) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ClipStackX sells 1 in-app purchase, starting at $0.99 per month and K.ai sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ClipStackX ships an update every 3 days, K.ai weekly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ClipStackX | K.ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Size | 46 MB | 56 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Yokokawa](https://appshunter.io/developer/1650823072) | [Null Research LLC](https://appshunter.io/developer/1896603560) |

## What reviewers say

### ClipStackX

[App page](https://appshunter.io/ios/app/clipstackx-copy-and-memo-manager/id6741915476)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |


### K.ai

[App page](https://appshunter.io/ios/app/kai-private-ai/id6789738119)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Credit Pack | $9.99 | one-time |
| Medium Credit Pack | $24.99 | one-time |
| Large Credit Pack | $49.99 | one-time |


## Frequently asked questions

### Is ClipStackX free?

ClipStackX is free to download, with in-app purchases available.

### Is K.ai free?

K.ai is free to download, with in-app purchases available.

### Do ClipStackX or K.ai have ads?

ClipStackX shows ads; K.ai does not.

### Which is updated more often, ClipStackX or K.ai?

ClipStackX ships an update every 3 days, and K.ai weekly. Most recently, ClipStackX was updated on November 8, 2026 and K.ai on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*